I encounter this post's problem
Here my sample of code
public class StackOverflow implements RequestHandler<Map<String, String>, ApiGatewayResponse> {
private static final Logger LOGGER = LogManager.getLogger(StackOverflow.class);
public abstract class StreamGobbler extends Thread {
// Working Interceptor using this.print("message")
public abstract void print(String line);
}
private class ErrStreamGobbler extends StreamGobbler {
ErrStreamGobbler(InputStream in) { super(in); }
@Override
public void print(String line) { LOGGER.error(line); }
}
private class OutStreamGobbler extends StreamGobbler {
OutStreamGobbler(InputStream in) { super(in); }
@Override
public void print(String line) { LOGGER.info(line); }
}
// MAIN METHOD
@Override
public ApiGatewayResponse handleRequest(Map<String, String> params, Context context) {
// ThreadContext propagation
System.setProperty("isThreadContextMapInheritable", "true");
ThreadContext.put("foo", "bar");
LOGGER.info("Hello from main");
// My process will return value on System.in & System.out
ProcessBuilder pb = new ProcessBuilder("sh", String.format("batchs/JOB_FOO/run.sh"));
Process p = pb.start();
// Intercept those logs
new ErrStreamGobbler(p.getErrorStream()).start();
new OutStreamGobbler(p.getInputStream()).start();
p.waitFor();
}
}
The ThreadContext from LOGGER.info("Hello from main"); does work and also prints foo: bar.
But my child threads StreamGobbler doesn't get ThreadContext and won't print foo: bar as a log4j property event if isThreadContextMapInheritable is set to true.
